's newest war hero freed after eight years of captivity in iraq >> brody is really a victim of war. that's what he is. he comes back absolutely eviscerated by war. damaged irreppably. and that's the human cost of war. >> reporter: carrie suffers from a by polar disorder, a cassandra character who speaks the truth that no one else believes. >> you don't know what you're doing. >> reporter: by the end of season one, she unravels and undergoes electro shock therapy. while brody at the last minute aborts his suicide bomb plot. >> got a call for you from your daughter. >> this thing just came right out of the gates. it was, you know, within episode 2 or 3 people were talking about it. >> reporter: but lewis never imagined who was talking about the show. last spring he was invited to a state dinner at the white house for the british prime minister. president obama told him he was a fan of homeland. >> you know, i said to him and david cameron halfway through dinner, when do you guys get to watch tv because aren't you supposed to be running the free world? and the president said, you know, satu
